Home / 147,965,911.60-221,948,867.40-142,013,772.40

Finding the Fourth Proportional to 147,965,911.60, 221,948,867.40 and 142,013,772.40

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Solution

The fourth proportional to 147,965,911.60, 221,948,867.40 and 142,013,772.40 is: 213,020,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,965,911.60 : 221,948,867.40 = 142,013,772.40 : x
  2. Step 2: Convert to fraction form
    147,965,911.60/221,948,867.40 = 142,013,772.40/x
  3. Step 3: Cross multiply
    147,965,911.60x = 221,948,867.40 × 142,013,772.40
  4. Step 4: Simplify right side
    147,965,911.60x = 31,519,795,939,381,380
  5. Step 5: Solve for x
    x = 31,519,795,939,381,380/147,965,911.60
  6. Step 6: Final answer
    x = 213,020,658.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.